package com.heima.search.service.Impl;

import com.heima.model.common.dtos.ResponseResult;
import com.heima.model.common.enums.AppHttpCodeEnum;
import com.heima.model.user.pojos.ApUser;
import com.heima.search.pojos.ApUserSearch;
import com.heima.search.pojos.HistorySearchDto;
import com.heima.search.service.ApUserSearchService;
import com.heima.utils.thread.AppThreadLocalUtil;
import lombok.RequiredArgsConstructor;
import lombok.extern.slf4j.Slf4j;
import org.springframework.data.domain.Sort;
import org.springframework.data.mongodb.core.MongoTemplate;
import org.springframework.data.mongodb.core.query.Criteria;
import org.springframework.data.mongodb.core.query.Query;
import org.springframework.scheduling.annotation.Async;
import org.springframework.stereotype.Service;

import java.util.Date;
import java.util.List;

@Service
@Slf4j
@RequiredArgsConstructor
public class ApUserSearchServiceImpl implements ApUserSearchService {

    private final MongoTemplate mongoTemplate;
    /**
     * 保存用户搜索记录
     *
     * @param keyword
     * @param userId
     */
    @Override
    @Async
    public void insert(String keyword, Integer userId) {
        //1.查询当前用户的搜索关键词
        Query query = Query.query(Criteria.where("userId").is(userId).and("keyword").is(keyword));
        ApUserSearch apUserSearch = mongoTemplate.findOne(query, ApUserSearch.class);
        //2.如果存在，更新时间
        if (apUserSearch != null){
            apUserSearch.setCreatedTime(new Date());
            mongoTemplate.save(apUserSearch);
        }
        //3.不存在，判断当前用户的搜索记录是否超过10条，超过则删除一条再保存
        apUserSearch= new ApUserSearch();
        apUserSearch.setUserId(userId);
        apUserSearch.setKeyword(keyword);
        apUserSearch.setCreatedTime(new Date());

        Query query1 = Query.query(Criteria.where("userId").is(userId));
        query.with(Sort.by(Sort.Direction.DESC, "createdTime"));
        List<ApUserSearch> apUserSearchList = mongoTemplate.find(query1, ApUserSearch.class);

        if (apUserSearchList.size() < 10){
            mongoTemplate.save(apUserSearch);
        }else {
            ApUserSearch lastUserSearch = apUserSearchList.get(apUserSearchList.size() - 1);
            mongoTemplate.findAndReplace(Query.query(Criteria.where("id").is(lastUserSearch.getId())),apUserSearch);
        }
    }

    /**
     * 查询用户搜索记录
     *
     * @return
     */
    @Override
    public ResponseResult findUserSearch() {
        //1.获取当前登录用户
        ApUser user = AppThreadLocalUtil.getUser();
        if (user == null){
            return ResponseResult.errorResult(AppHttpCodeEnum.NEED_LOGIN);
        }
        //2.根据用户查询搜索记录，按时间倒序
        List<ApUserSearch> apUserSearches = mongoTemplate.find(Query.query(Criteria.where("userId").is(user.getId()))
                .with(Sort.by(Sort.Direction.DESC, "createdTime"))
                ,ApUserSearch.class);
        return ResponseResult.okResult(apUserSearches);
    }

    /**
     * 删除用户搜索记录
     *
     * @param dto
     * @return
     */
    @Override
    public ResponseResult delUserSearch(HistorySearchDto dto) {
        //1.检查参数
        if (dto == null || dto.getId() == null){
            return ResponseResult.errorResult(AppHttpCodeEnum.PARAM_INVALID);
        }
        //2.判断是否登录
        ApUser user = AppThreadLocalUtil.getUser();
        if (user == null){
            return ResponseResult.errorResult(AppHttpCodeEnum.NEED_LOGIN);
        }
        //3.删除记录
        mongoTemplate.remove(Query.query(
                Criteria.where("userId").is(user.getId())
                        .and("id").is(dto.getId()))
                ,ApUserSearch.class);
        return ResponseResult.okResult(AppHttpCodeEnum.SUCCESS);
    }
}
